GlobalShaderResourceBinding.h

#pragma once
 
// Standard.
#include <variant>
#include <memory>
#include <optional>
#include <array>
 
// Custom.
#include "render/general/resource/frame/FrameResourceManager.h"
#include "misc/Error.h"
 
namespace ne {
    class Pipeline;
    class Renderer;
    class GpuResource;
    class GlobalShaderResourceBindingManager;
 
    class GlobalShaderResourceBinding {
        // Only manager is allowed to create such objects.
        friend class GlobalShaderResourceBindingManager;
 
    public:
        GlobalShaderResourceBinding() = delete;
 
        GlobalShaderResourceBinding(const GlobalShaderResourceBinding&) = delete;
        GlobalShaderResourceBinding& operator=(const GlobalShaderResourceBinding&) = delete;
 
        GlobalShaderResourceBinding(GlobalShaderResourceBinding&&) = delete;
        GlobalShaderResourceBinding& operator=(GlobalShaderResourceBinding&&) = delete;
 
        virtual ~GlobalShaderResourceBinding() = default;
 
    protected:
        [[nodiscard]] static std::optional<Error> create(
            Renderer* pRenderer,
            GlobalShaderResourceBindingManager* pManager,
            const std::string& sShaderResourceName,
            const std::array<GpuResource*, FrameResourceManager::getFrameResourceCount()>& vResourcesToBind);
 
        GlobalShaderResourceBinding(
            GlobalShaderResourceBindingManager* pManager,
            const std::string& sShaderResourceName,
            const std::array<GpuResource*, FrameResourceManager::getFrameResourceCount()>& vResourcesToBind);
 
        [[nodiscard]] virtual std::optional<Error> bindToPipelines(Pipeline* pSpecificPipeline) = 0;
 
        void unregisterBinding();
 
        const std::string& getShaderResourceName() const;
 
        std::array<GpuResource*, FrameResourceManager::getFrameResourceCount()> getBindedResources() const;
 
    private:
        const std::string sShaderResourceName;
 
        const std::array<GpuResource*, FrameResourceManager::getFrameResourceCount()> vBindedResources;
 
        GlobalShaderResourceBindingManager* const pManager = nullptr;
    };
}